.TH std::seed_seq 3 "2024.06.10" "http://cppreference.com" "C++ Standard Libary"
.SH NAME
std::seed_seq \- std::seed_seq

.SH Synopsis
   Defined in header <random>
   class seed_seq;             \fI(since C++11)\fP

   std::seed_seq consumes a sequence of integer-valued data and produces a requested
   number of unsigned integer values i, 0 ≤ i < 232
   , based on the consumed data. The produced values are distributed over the entire
   32-bit range even if the consumed values are close.

   It provides a way to seed a large number of random number engines or to seed a
   generator that requires a lot of entropy, given a small seed or a poorly distributed
   initial seed sequence.

   std::seed_seq meets the requirements of SeedSequence.

.SH Member types

   Member type         Definition
   result_type \fI(C++11)\fP std::uint_least32_t

.SH Member functions

   constructor       constructs and seeds the std::seed_seq object
   \fI(C++11)\fP           \fI(public member function)\fP
   operator=         seed_seq is not assignable
   [deleted] \fI(C++11)\fP \fI(public member function)\fP
   generate          calculates the bias-eliminated, evenly distributed 32-bit values
   \fI(C++11)\fP           \fI(public member function)\fP
   size              obtains the number of 32-bit values stored in std::seed_seq
   \fI(C++11)\fP           \fI(public member function)\fP
   param             obtains the 32-bit values stored in std::seed_seq
   \fI(C++11)\fP           \fI(public member function)\fP

.SH Example


// Run this code

 #include <cstdint>
 #include <iostream>
 #include <random>

 int main()
 {
     std::seed_seq seq{1, 2, 3, 4, 5};
     std::vector<std::uint32_t> seeds(10);
     seq.generate(seeds.begin(), seeds.end());
     for (std::uint32_t n : seeds)
         std::cout << n << '\\n';
 }

.SH Possible output:

 4204997637
 4246533866
 1856049002
 1129615051
 690460811
 1075771511
 46783058
 3904109078
 1534123438
 1495905678
